1 The lac operon consists of three structural genes, and a promoter, a terminator, regulator, and an operator. 2  The three structural genes are: lacZ, lacY, and lacA.n this case, when lactose is required as a sugar source for the bacterium, the three genes of the lac operon can be expressed and their subsequent proteins translated: lacZ, lacY, and lacA.
NEC Corporation (æ¥æ¬é»æ°æ ªå¼ä¼ç¤¾, Nippon Denki Kabushiki Gaisha) is a Japanese multinational provider of information technology (IT) services and products, headquartered in Minato, Tokyo, Japan.
Necco dates its origins to Chase and Company, a company founded by brothers Oliver R. and Silas Edwin Chase in 1847. Having previously invented and patented the first American candy machine, the Chase brothers continued to design and create machinery that made assortments of candies, such as their popular sugar wafers.